[Password Manager] Fix crash in reporting sync stats.

chrome/browser/password_manager/sync_metrics.h

Index: chrome/browser/password_manager/sync_metrics.h
diff --git a/chrome/browser/password_manager/sync_metrics.h b/chrome/browser/password_manager/sync_metrics.h
index 5f6385f514564f09733facece760df834b32b900..2a22b07e78e7993f650be9626a8b5c34c0462a17 100644
--- a/chrome/browser/password_manager/sync_metrics.h
+++ b/chrome/browser/password_manager/sync_metrics.h
@@ -12,14 +12,16 @@ class Profile;
 namespace password_manager_sync_metrics {
 
 // Returns the sync username for |profile|. Returns an empty string if the
-// |profile| isn't syncing passwords.
-std::string GetPasswordSyncUsername(Profile* profile);
+// |profile| isn't syncing. It would be preferable to only return the username
+// if the user is syncing passwords, but that is not currently possible since
+// this function can be called during sync setup (http://crbug.com/393626).
+std::string GetSyncUsername(Profile* profile);
 
 // Returns true if |username| and |origin| correspond to the account which is
-// syncing passwords. Will return false if |profile| is not syncing passwords.
-bool IsPasswordSyncAccountCredential(Profile* profile,
-                                     const std::string& username,
-                                     const std::string& origin);
+// syncing. Will return false if |profile| is not syncing.
+bool IsSyncAccountCredential(Profile* profile,
+                             const std::string& username,
+                             const std::string& origin);
 
 }  // namespace password_manager_sync_metrics